While these slides are being figured out, may be traversing to you through the 4G network, researchers allover the globe are imagining, How would be the next mobile generation?, the 5G, a totally different descendant, the system of systems. Enjoy .. :)

1. 5G
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By: Belal Essam
A Network, and Beyond ...
7 Dec. 2016

2. Agenda
• Why?
• 5G Requirements.
• 5G Technology Candidates.
• A General 5G Network Architecture.
• Challenges.
• 5G Use Cases.
• When? 2
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3. Why?
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7 Dec. 2016
Source:

4. 5G Requirements
7 Dec. 2016
1 ms
Latency
X100
Data Rate
Than Today
Energy
Efficiency
Spectral
Efficiency

5. 5G Technology Candidates
● Small Cells.
● mmWave.
● Massive MIMO.
● Proactive Caching.
● D2D Communications.
●
7 Dec. 2016

6. Small Cells
● Efficient reuse of spectrum across a geographic area.
● Reduction in the # of users competing for resources at each BS, achieving high
coverage.
● Decreasing the transmission power drastically.
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5G Technology Candidates
Densification
Cell Shrinking
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7. mmWave
● Refers to frequencies in range 30-300 GHz, also known as Extremely High Frequency (EHF).
● The wavelength is between 10mm-1mm.
● “ To put large amounts of new bandwidth into play there is only one way to go: up in frequency,
Why? ”
● Frequency spectrum at this band still undeveloped widely, more BW is available.
● Efficient frequency reuse due to high attenuation.
● Inherent security and privacy because of narrow beamwidths and limited range.
● Extremely small wavelengths, allowing for huge # of antenna elements (Massive MIMO).
● 7
5G Technology Candidates
7 Dec. 2016

8. Massive MIMO
● An evolving technology, upgraded from the current MIMO technology.
● The Massive MIMO system uses arrays of antenna containing few hundred antennas
which are at the same time , frequency serving many tens of user terminals.
● Extract all the benefits of MIMO but on a larger scale.
●
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5G Technology Candidates
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9. Proactive Caching
● Densification requires high-speed expensive backhauls.
● Assuming that the backhaul is capacity-limited, caching users’ contents at the edge of
the network (namely at the base stations and user terminals) holds as a solution to
offload the backhaul and reduce the access delays to the contents.
●
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5G Technology Candidates
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10. D2D Communications
● Refers to direct communication between devices allowing local exchange of user traffic without
going through a network infrastructure.
●
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5G Technology Candidates
Source: A Survey of 5G Network: Architecture and Emerging Technologies. IEEE Access.
7 Dec. 2016

11. A General 5G Network Architecture
Heterogeneous Networks (HetNets)
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Source: A Survey of 5G Network: Architecture and Emerging Technologies. IEEE Access.
7 Dec. 2016

12. Challenges
● High-speed expensive backhauls. (Densification)
● Signal huge propagation loss, sensitivity for blockage by obstacles. (mmWave)
● High speed HW requirements. (mmWave)
etc...
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13. 5G Use Cases
● Healthcare
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Source: https://www.ericsson.com/5g/use-cases
● Broadband, Media everywhere.
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14. 5G Use Cases
● Smart Vehicles, Transportation.
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● Sensor Networks
Source: https://www.ericsson.com/5g/use-cases
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15. When?
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2020 ?

16. References
● A. Gupta and R. K. Jha, "A Survey of 5G Network: Architecture and Emerging Technologies," in IEEE
Access, vol. 3, no. , pp. 1206-1232, 2015.
● J. G. Andrews et al., "What Will 5G Be?," in IEEE Journal on Selected Areas in Communications, vol.
32, no. 6, pp. 1065-1082, June 2014.
● https://en.wikipedia.org/wiki/5G
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